Casing hanger



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May 15, 19278.

' R. M. JUDD ET AL CASING HANGER Filed Jan. 24, 1927 Patented May 15, 1928i.

UNITED STATES PATENT OFFICE.

RICHARD M. JUDD, ERNEST C. TAYLOR, AND RALPH s. yIs/ICNANEY, 0E DowAGIAC, MICHIGAN, AssIGNoRs To PREMIER WARM-AIR HEATER COMPANY, 0E DCWAGIAC, MICHIGAN, A CORPORATION orl MICHIGAN.

CASING HANGER.

Application mea January 24, 1927. sei-iai No. 163,221.

This invention relates generally to warm air furnaces and refers more particularly to the construction of the casings surrounding such furnaces. v

Heretofore'it has been the practice to provide warm air furnaces with outer casings having inner liners spaced therefrom so as to provide air insulating spaces surrounding the furnaces. However, unless suilicient means were provided for holding the walls in spaced relation there was a tendency for the innerl liner to contact with the wall of the casing with the result that the inner liner would burn out due to the intense heat radiating from the combustion chamber of the furnace. It has also been found that there was a tendency for the inner liner to dropdown out of place'and thereby stop the flow of the cold air to the furnace.

With the present invention, however, these objectionable features are entirely eliminated by providing means for positively supporting and spacing the inner liners from the casings so that there will be no possibility of one wall moving into contact with the other or of the liner dropping down out of alignment with respect to the casing.

With these and invention resides in certain novel features of construction, combinationsand arrangements of parts, as will be hereinafter more fully described and particularly pointed out in the appended claims.

In the drawings:

Figure 1 is a section through a warm air furnace showing a casing and inner liner arranged in accordance with the present invention,

Figure 2 is a detailed view of the inner.

detailed view of the casing VThis portion 13 is in other objects in view the y jacent the bottom of the lliner rand casing spreaders 5' thereof. f

As shown, the outer casing 2 is composed of upper and lower sections 6 and 7 respectively, having a central casing ring 8 interposed therebetween, ivhich supports the inner liner hangers 4. These hangers are adapted to be hung at spaced intervals 4from the casing ring 8y in suiicient quantities to adequately support the inner liner and uniformJ ally space the same from the casing.

Each hanger consists of an elongated body 9 which, when placed injposition,flies in close proximity to the inner face of the casing 2. As shown, the upper end ofthe body 9 terminates in' a hooked portion 10 which is adapted to be hung over the central casing ring 8 for supporting the hanger in place. The lower end of the body 9 is extended inwardly so as to form a diagonal portion 11 which is provided with a lateral flange 12 having a returned bent portion13. turn provided with a lateral upwardly extending flange 14, adaptedto lie in a plane substantially parallel with the body 9 so that its end portion will be spaced from the diagonal portion 11.

With this construction the lower en'd portion of the inner liner 3 is adapted to be located at the top portions supported in a V-shaped opening 14 formed by the flange 14 and the diagonal portion 11 and because of this V-shaped formation the lower edge of the liner is firmly and securely wedged therein.

At the upper edges of the casing 2 and inner liners 3, there are provided a plurality of easing spreaders 5 which are positioned at spaced intervals similarly to the hangers 4. As shown, each spreader consists of a channel-shaped member 15 which is adapted to be placed between the outer casing and inner liner, the walls of the channel 15 being provided with outwardly extending portions 16 overlying .the top edges of the casing and-inner liner and extending downwardly in contact with the outer walls thereof.

In erecting the casing and assuming that the furnace is set up and that the base rin is levelled and in place, the lower section is first put in position after which the cenliner is positioned so that the lower edges thereoi" are securely held in the `Vshaped openings 114.

When :this is accomplished the upper -section 6 of the outer casing is placed outside of the inner liner, whereupon the spreaders 5 are positioned at spaced intervals'soasto hold the upper edges of the casing andliner in spaced relation.

It will, of course, be understood, in assembling the casing that arrangements will yalso vbe made for taking care of the other sections -ot the furnace .which are not a part of the present invention .and which `are therefore not .herein described.

. yVVhile'the hangers and. spreader-sV are preterably made of .galvanized iron, and other suitable material may be used if .found morek desirable. We .have also .tound itI advisable to provide strengthening ribs .in the .elongated'body 9 and in the base portion oit each .spreader 5, but thisis-o'tl course optional and neednot be resorted to.

From the .foregoing -it will be apparent .that we'have providedineans ior positively supporting-.and spacing Vthe inner liners `from the outer casings o1" warm .air `furnaces, which are Vsimple .in construction, cheaply manutacturedand which willgreat-ly facilitate the assembly ot' the casings.

y lVhile it `is believed .that `from the .foregoing description, thenature andadvfantage oft ourinvei'ition will .be readily understood, fwe

,desire to have it .understoodfthat,weidonot liinit ourselves tothe specific construction .herein shown .and described andithat such changes may beresortedto when desired as fall within the scopeof the claims.

l/Vhatweclaim our invention is .7 .1. .A hanger .for the .inner liner of .a -t'ur- V.nace casing c oniprisingan elongatedbody having a `1'eturn,-bent portion at Ione end lthereof-tor attachment to the casingfand havving the other end'thereof provided with an otl'set portion adapted to receive an edge of the inner liner for supporting thefsalne and for spacing the liner relative to the casing.

ZA hanger for the inner liner of a furnace casing eo1npriising-a`body `haivinfgone Vend ithe'reot' pro-vided lwith a diagonally eX- tending--otfset portion -having fay l'laterall liange, said fiange having a return-bent portion -providedwith a lateral operating-*with the aforesaid diagonally extending oli'se't portion to form therewith a wedge=shaped opening for receiving an-edge of the said inner'linerand tor holding the saine in .spacedrelation to the casing.

A hanger tor the inner liner of a fur .nace casing tcomprising a -body portion.

adapted toengage the inner surfaceof said casing and having its lower end provided with a wedge-shapedopening adapted to receive the lower edge ot' .the inner liner for supporting the saine, the upper end of said hanger being .provided with a :return bent portion for attaelnnent to the casing. E

4. .Ahanger tor the inner ,liner of .a'furnace casing comprisingI a body :having one end thereof provided with a wedge-shaped cuaeningadapted to receive an 'edge ot .the .inner yliner Jfor supporting the saine, and a transverse portion extending from the .base oft said openingnto said casing for .spacing the liner from the casing. f 5. A hanger for the inner liner ot a furnace casing,.comprising a `body'adapted to be supported Aby the casing, .said 'body vbei-ng .provided ,with an o'tfset portion Aadapted to receive .anedge of theinnerliner I l rftures.

RioHirnnM. anni). .ERNEST c. TAYLOR.

RALPHs. .MeNANEr Y .for .snp- .porting the-saineand nieans ,projectingtronr vprojection co- 

